One vertex per element, one color per generator, with an edge from x to x·s.
(2,7)(3,12)(5,13)(9,14)(10,11)(15,16)(17,18,20,23,21,24,27,30)(19,22,26,29,25,28,31,32)(1,2)(3,4)(5,10)(6,11)(7,13)(8,14)(9,15)(12,16)(17,19)(18,22)(20,26)(21,25)(23,29)(24,28)(27,31)(30,32) involution — undirected(1,3,13,9,6,14,5,12)(2,8,7,16,11,4,10,15)(19,25)(22,28)(26,31)(29,32)(1,4)(2,9)(3,10)(5,16)(6,8)(7,14)(11,12)(13,15) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.